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IEEE Guide for Loading Mineral-Oil-Immersed Power Transformers Up to and Including 100 MVA with 55 C or 65 C Average Winding Rise
New IEEE Standard - Inactive-Withdrawn.
General recommendations for loading mineral-oil-immersed power transformers and other oil-insulated power transformers having up to and including 100 MVA maximum nameplate rating are covered. They are based mostly on aging of the winding insulation.
This guide may also be used for askarel-filled transformers.
The method used for computer calculation of the capability tables for normal and moderate sacrifice of life and examples for developing them by hand calculations are given.
This guide covers general recommendations for loading mineral-oil power transformers, manufactured in accordance with ANSI C57.12.10-1976 and ANSI C57.12.30-1977 and other oil-insulated power transformers up to and including 100 MVA maximum nameplate rating.
It is based mostly on aging of the winding insulation. Loading of transformers larger than 100 MVA may be limited by factors other than insulation aging such as stray flux, etc.
When it is known that such limitations do not exist and insulation aging rather than oil temperature, gassing, tank heating, etc. is the controlling factor, this guide may be used.
This guide may also be used for askarel filled transformers.
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